3.

The cylindrical capacitor whose cross section is in Figure 6.27 has inner and outer radii of

5 mm and 15 mm, respectively. If V(p = 5 mm) = 100 V and V(p = 15 mm) = 0 V,

calculate V, E, and D at p = 10 mm and ps on each plate. Take &, = 2.0.

100 V

5 mm

15 mm

Figure 6.27 Cylindrical capacitor